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基于聚类主成分分析法的变压器参数关联度评估 被引量:4
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作者 王洪授 黄同愿 +2 位作者 陈红光 杨弦 王炼红 《火力与指挥控制》 CSCD 北大核心 2017年第4期133-137,共5页
为了有效管理和监测电力变压器的健康状态,在对变压器正常运行的海量数据进行分析的基础上,构建变压器参数关联度评估方法。首先,为了对变压器运行参数进行参数分类定性,基于系统聚类的方法构建变压器参数样本分类流程算法,并设计了相... 为了有效管理和监测电力变压器的健康状态,在对变压器正常运行的海量数据进行分析的基础上,构建变压器参数关联度评估方法。首先,为了对变压器运行参数进行参数分类定性,基于系统聚类的方法构建变压器参数样本分类流程算法,并设计了相应的流程图;然后,通过引入聚类以及主成分分析方法,建立基于聚类的主成分分析的变压器主要影响参数关联度评估模型;最后通过潼南电力局实际运行数据验证模型的可靠性和有效性,准确分析了变压器运行参数之间的定量关系,可以为变压器故障预测研究提供重要依据。 展开更多
关键词 变压器 参数关联度 聚类分析 主成分分析法
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A survey of deep learning-based visual question answering 被引量:1
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作者 huang tong-yuan YANG Yu-ling YANG Xue-jiao 《Journal of Central South University》 SCIE EI CAS CSCD 2021年第3期728-746,共19页
With the warming up and continuous development of machine learning,especially deep learning,the research on visual question answering field has made significant progress,with important theoretical research significanc... With the warming up and continuous development of machine learning,especially deep learning,the research on visual question answering field has made significant progress,with important theoretical research significance and practical application value.Therefore,it is necessary to summarize the current research and provide some reference for researchers in this field.This article conducted a detailed and in-depth analysis and summarized of relevant research and typical methods of visual question answering field.First,relevant background knowledge about VQA(Visual Question Answering)was introduced.Secondly,the issues and challenges of visual question answering were discussed,and at the same time,some promising discussion on the particular methodologies was given.Thirdly,the key sub-problems affecting visual question answering were summarized and analyzed.Then,the current commonly used data sets and evaluation indicators were summarized.Next,in view of the popular algorithms and models in VQA research,comparison of the algorithms and models was summarized and listed.Finally,the future development trend and conclusion of visual question answering were prospected. 展开更多
关键词 computer vision natural language processing visual question answering deep learning attention mechanism
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